Nautilus 1789 Women's ESD Carbon Composite Fiber Ultra Light Weight Safety Shoe 100% Synthetic Imported Rubber sole Mesh and Synthetic Leather Upper Super Lightweight Carbon Nanofiber Composite Safety Toe Cap. Meets or Exceeds ASTM F2413-11 Impact/Compression and SD Ratings. Advance ESD Sock liner. ESD Electric Static Dissipating Footwear meeting or exceeding all ASTM Standards. EVA Midsole for Maximum Comfort. 100% Man-Made Components. Oil- and Slip-Resistant Carbon Rubber Outsole No Exposed Metal to Meet Scratch Resistant Workplace Requirements